What causes the Coriolis Effect

I really need help!!!!!!!!!

The earth is rotating, this is motion. The earth is spinning faster at the equator (tengential velocity wise, but the angular velocity is the same (1 rotation per 24 hours) than up north, because that is where the distance to the axis of rotation is largest. so if you were to throw a ball really fast from the equator to the poles, inertia would have it that the ball would not lose its earth given velocity that it had at the equator. So now it would be moving just as fast (relative to someone outside of earth in a non-rotating inertial reference frame) as it was at the equator, but since the earth's rotation velocity speed in meters per second is slower up north , the ball would begin to "outrun " the earth and curve to the right in the northern hemisphere and the left in the southern hemisphere.

its not a force, its due to the fact that earth is not an inertial reference frame , but a rotating frame.


Imagine being in the center of a rotating plate thing (you know those things at a kids playground that you can twirl in circles like a merry go round?) and you throw a ball outward in a straight line. also imagine that you are spinning with the rotating plate in the center (so you are in a rotating reference frame ). for the ball to travel completely in a straight line in front of you would be impossible because you are rotating, which would mean that the ball would have to actually be curving (to an outside still (inertial ) observer) in order to keep up with your rotation. it would have to be curving at an ever increasing rate. This implies forces are applied, and in the absence of forces it would move in a straight line with respect to a casual observer. Yet for this to happen, it would appear that the balls path was curving with respect to YOUR ROTATING reference frame. This is called a pseudoforce, the coriolis force is not actually a force, but rather an illusory force brought about by the fact that we live on the earth which is a rotating reference frame and it would appear to "force " the ball to curve relative to the rotating plate/merry go round when in reality it is travelling in a straight line outwards and its just the merry go round rotating.

Here the poles would represent the "center" center of the merry go round, and the equator would be the outside edge where the tangential velocity is maximum.

In short, the earth's rotation. Once air has been set in motion by the pressure gradient force, it undergoes an apparent deflection from its path, as seen by an observer on the earth. As air moves from high to low pressure in the northern hemisphere, it is deflected to the right by the Coriolis force. In the southern hemisphere, air moving from high to low pressure is deflected to the left by the Coriolis force.

The Coriolis effect is a consequence of the earth's rotation on its axis.
The tangential speed of rotation is greater at the equator than it is at the poles.

As air moves north from the equator...it bends to the right in the northern hemisphere.